Electronic Range Select (ERS) Mode
ERS or manual mode allows for the selection of the range of gear positions. Use this mode when driving down hill or towing a trailer to limit the top gear and vehicle speed.
To use this feature:
1. Move the shift lever to M(Manual Mode).
2. Press the plus/minus button on the shift lever, to increase or decrease the gear
range available.
See Manual Mode on page 9‑31 for more information.
See also:
Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors.
Call 1-800-GMC-8782 (1-800-462-8782), or write:
GMC Customer Assistance Center
P.O. Box ...
Steering Wheel Controls
Some audio steering wheel controls can be adjusted at the steering wheel.
: Press to interact with the available
Bluetooth or OnStar systems.
: Press to silence the vehicle speakers
only. Pre ...
Special Application Services
○ Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000
km/ 3,000 mi.
○ Have underbody flushing service performed once a year. ...





